America and Eurasia. The type species is Protapirus priscus from the Late Oligocene of Quercy, France. Protapirus is often considered the earliest true tapir...

Helaletidae. The oldest known members of the family Tapiridae such as Protapirus are known from the Early Oligocene of Europe. The oldest representatives...

†Miotapirus Genus †Nexuotapirus Genus †Paratapirus Genus †Plesiotapirus Genus †Protapirus (syn. Tanyops) Genus †Tapiravus Genus Tapirus Family †Helaletidae Genus...

T. veroensis (=T. excelsus), collected in Missouri. T. augustus and Protapirus simplex in background. At the AMNH....

closely related and likely ancestral to the true tapirs, which contain Protapirus and all descendants. In alternative classifications, Helaletidae is treated...

probably evolved from Protapirus which had migrated into Eurasia from North America near the end of the Oligocene. In comparison to Protapirus it had more derived...

Miotapirus. The second species, N. robustus, was originally placed in Protapirus but was also moved to Nexuotapirus based on comparable lower dentition...

Genus Species Clade Epoch Image Notes †Protapirus Tapiridae...

†Procamelus †Procastoroides †Promartes †Promerycochoerus †Proscalops †Protapirus †Proterix †Protoceras †Protohippus †Protolabis Pseudacris †Pseudaelurus...

niobrarensis – or unidentified comparable form †Protapirus †Protapirus obliquidens – type locality for species †Protapirus simplex – type locality for species †Proterix...

Later additions included perissodactyls such as Merychippus, Parahippus, Protapirus, and Diceratherium, artiodactyls such as Dromomeryx and Blastomeryx, and...